A Functionally Expanded Computer Program for Computing Machine-Dependent Constants.

Abstract

In this report, we present an updated version of an earlier FORTRAN program that computed machine-dependeant constants. The earlier program has been expanded to compute (1) the base (radix) of the computer number system from the system's unit roundoff, (2) the number of digits in the fraction of a floating-point number, and (3) the number of bits in a digit. Furthermore, the program has been expanded to compute the page length of virtual memory machines like the VAX 11/780. An illustration is given of how the updated program can be used as an aid in transporting from one computer to another mathematical software that contains machine-dependent floating-point arithmetic parameters. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 12, 1981
Accession Number
ADA096813

Entities

People

  • M. J. Goldstein

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Arithmetic
  • Bessel Functions
  • Computations
  • Computer Programs
  • Computers
  • Engineering
  • Errors
  • Floating Point Operations
  • Intervals
  • Mathematical Programming
  • Numbers
  • Precision
  • Real Numbers
  • Rhode Island

Fields of Study

  • Computer science
  • Physics

Readers

  • Computer Programming and Software Development.
  • Parallel and Distributed Computing.
  • Systems Analysis and Design